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Electromagnetic Field Theory

Electromagnetic Field Theory
An infinite sheet has a charge density of 150 μ C/m. The flux density in μ C/m 2 is

 100.
 75.
 1/75.
 50.

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Electromagnetic Field Theory
The force required to seperate two surfaces with a contact area measuring 5 cm by 6 cm, when flux density normal to the surface is 0.8 tesla, will be

 76.4 N.
 7640 N.
 764 N.
 76400 N.

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Electromagnetic Field Theory
1 Tesla =

 1 wb/m.
 1 wb/ m2.
 1 wb .
 1 wb- m2.

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Electromagnetic Field Theory
In above question no. 9, the average force on the core to reduce the air gap will be

 1666.22 N.
 6664.8 N.
 832.29 N.
 3332.47 N.

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Electromagnetic Field Theory
How much current must flow in a loop of radius 1m to produce a magnetic field of 1 mA/m?

 1mA.
 2.5 mA.
 2 mA.
 1.5 mA.

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Electromagnetic Field Theory
In H-plane metal plate lens the travelling wave front is

Retarded
Neither accelerated nor retarded
Accelerated
Totally retarded

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MORE MCQ ON Electromagnetic Field Theory

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